Precise forging process leads to a stiff chain for better acceleration and more efficient engine work Lightening hole allows for a lighter chain without compromising strength while removing mud and dispersing heat more efficiently Improvement in transmission efficiency Special pins with holes in both ends allow the chain to be lightened Edge-cut inner plate reduces friction and allows for smooth engagement with sprocket Designed for enduro and supermoto bikes 250cc-650cc. CHAIN 3D 520SM X 120 GLD
